W2O buys Pure Communications. Jim Weiss’ agency network plans to merge the firm with its own BrewLife shop, with Pure founder and CEO Andrea Johnston in charge. Life-sciences-focused Pure, which has about 30 staffers and offices in Wilmington, North Carolina, and Cambridge, Massachusetts, was founded in 2004.

New this morning: Starbucks debuts first original content series. Called Upstanders, the 10-part series is highlighting positive stories that don’t get much attention in the mainstream media. The coffee chain said CEO Howard Schultz was personally involved in the writing and production of the series. Each segment will be available in three formats: the written word, podcast, and video.

Paralympics get underway. The Paralympic Games are set to begin on Wednesday in Rio de Janeiro, Brazil. Nearly 2 million tickets have been sold, though there are concerns about budget overruns and the city’s preparation for the series of events. Google rolled out a Doodle to mark the Games.

Tonight: Clinton, Trump participate in national security forum. The two candidates will square off, albeit separately, as part of the national-security-focused Commander-in-Chief Forum airing on NBC and MSNBC. Trump is leading Clinton by 19 points among former and active members of the military, according to an NBC News/SurveyMonkey poll released Wednesday morning. Trump is also trying to fight off pay-for-play allegations about a donation he made in 2013 to Florida Attorney General Pam Bondi, who was considering joining a multi-state suit against Trump University at the time.

More on Jim VandeHei’s next move. The Politico cofounder’s next venture will be a subscription-based media outlet for corporate executives featuring business and political news, and Lerer Hippeau Ventures and Comcast are both backing the startup, according to The Wall Street Journal. It is scheduled to launch early next year.

Long-awaited good news for Chipotle. Activist investor Bill Ackman’s Pershing Square has bought a stake of nearly 10% in the burrito chain, sending its stock up 5% in after-hours trading. Comparable restaurant sales were down more than 26% in the first half of 2016, as Chipotle tries to rebound from several food-safety scares that began last year.